This is a unusual Electrical "Danger Alive" sign from Common Wealth Edison Company.
It is made of a Masonite material and measures 22 inches wide x 14 inches high.
The terminology is unusual "DANGER ALIVE" and the full spelling of the utility company dates it to years past.
It has some minor chipping & scratches from hot sparks and years of use, as seen in photos.
It measures22 inches wide x 14 inches high.